The school photographs were taken by Panora Limited of Clerkenwell, London. According to The Greater Manchester County Record Office, the Panora negatives were deposited with the Documentary Photography Archive (DPA) in 1986 by the managing director of the firm who had sold his business but retained the negatives. They are dated from 29 September 1968 to 30 July 1985. Earlier negatives have not survived.
It is very likely that Panora's copyright has lapsed.